Watermelon is packed with antioxidants like vitamin C, niacin, thiamin, and riboflavin. These elements increase our lifespan and keep us from age-related changes, some of them have an anticarcinogenic result.
However, more than one watermelon has similar beneficial properties, and in terms of the number of vitamins, it is far from the first. It is much more important that the benefits of watermelon in the content, in the exact sense of the word, precious folic acid.
It is essential for the formation of DNA, taking part in cell division and coordinating the assimilation and transformation of proteins.
Watermelon: folic acid and magnesium
These processes in the body are not visible to us; with regard to the visible result of folic acid: it guarantees a good color of the skin, promotes proper metabolism.
And another useful element of watermelon is magnesium.
In 100 gr. the fetus is approximately 60% of its daily dose. First of all, it is useful in that it provides the correct assimilation of other necessary elements in the body.
Magnesium contributes to the proper functioning of muscles and nerves. Signs of magnesium deficiency are manifested by cramps in the limbs, tingling, unexplained weakness and fatigue.
A lack of magnesium can affect the cardiovascular system: breakdowns of nerve conduction, together with a low tone of blood vessels, threaten arrhythmia and a significant risk of heart attack.
Therefore, persons with impaired blood pressure should most of all focus on the amount of magnesium in the diet. The kidneys also need magnesium - it prevents the formation of stones and prevents the accumulation of salts.
Magnesium is an excellent antidepressant. Bad mood, restless sleep and poor concentration will correct this substance. Maybe, in the end, it is the watermelon diet that will return the much needed strength, strength and vigor.
Watermelon - for slimness
This product will help people who want to lose those extra pounds. They have a low calorie content - 30 kcal per 100 g., Due to the watery content, it nourishes the body quickly and for a long time, and helps to remove unnecessary fluid from the body.
The “watermelon diet” has become widespread, when only the pulp of the fruit is consumed for a certain time, which gives the expected good result - the weight is noticeably decreasing.
Summing up the benefits of watermelon for the body:
- watermelon juice is replete with trace elements;
- relatively low calorie content;
- high levels of folate;
- disposal of the body of toxins and poisons;
- a good face care product with excellent moisturizing characteristics;
Now you know what watermelon is useful for, eat it to your health and with pleasure!
Watermelon harm
Of course, almost everyone adores these fruits, however, it should be admitted that this fruit is quite capricious and poses some danger. And we must admit that watermelon is not useful for everyone, moreover, for some it is prohibited.
Watermelons should not be consumed:
- Children - there is a certain risk of poisoning or colic;
- with diseases of the heart and blood vessels due to the possible presence of nitrates in the pulp of a watermelon;
- People suffering from diseases of the kidneys and urinary system, due to the large diuretic ability of the fetus, the diuretic effect of which will cause significant harm to these people;
- With diarrhea and minor intoxication (watermelon can significantly complicate the condition);
- With stones in the liver and kidneys, as watermelon can lead to their dangerous movement;
The fruit is dangerous, first of all, by the content of a huge number of nitrates. When grown, as a rule, the seeds are generously watered for rapid growth and juiciness. These fruits look more representative. These chemical fertilizers contain an impressive amount of nitrates, and the watermelon is located to accumulate nitrates during the entire growth and maturation.
Nitrates can cause severe intoxication, which manifests itself in an hour or two, and sometimes in a day or two. Often, of course, the poisoning ends quickly, but there is even information about deaths.
And yet, this does not mean that you cannot eat them, elementary - buy these fruits in reliable retail outlets. Avoid buying them on the road and from dubious sellers. There are many tips on the Internet for choosing the right watermelon, listen to them and do not deny yourself the pleasure!
Vitamins in watermelon
| Vitamins | Content |
|---|---|
| Vitamin A | 0.017 mg |
| Vitamin B1 | 0.04 mg |
| Vitamin B2 | 0.06 mg |
| Vitamin B3 | 0.3 mg |
| Vitamin B6 | 0.09 mg |
| Vitamin B9 | 0.008 mg |
| Vitamin C | 7 mg |
| Vitamin E | 0.1 mg |
| Minerals | Content |
| Potassium | 110 mg |
| Sodium | 16 mg |
| Calcium | 14 mg |
| Magnesium | 12 mg |
| Phosphorus | 7 mg |
Is watermelon a berry?
Watermelon is a popular and beloved vegetable product all over the world. Until now, disputes do not subside and there is no definition about this fruit, where to rank it: to fruits, vegetables or berries. Previously, it was referred to as a fruit, but a little time ago, there was a widespread opinion that the fruit is still a berry. Nevertheless, this is to some extent correct.
Due to the fact that in structure and composition, it is really akin to berries, but by and large it is ranked among the pumpkin family, and the samples of this family in no way have anything to do with berries.
Watermelon is a seasonal product, you can't buy it in winter, it comes to markets in stores from the middle of the summer season. You can buy it earlier, delivered from distant countries, but in all likelihood, it is already overripe or with a large amount of nitrates, therefore it is better not to buy it ahead of schedule, it is unlikely that this fruit will contain the necessary benefits.
The fruit is heterogeneous in color, often stripes, but there are also other patterns. Stripes of a pair of colors: yellowish or greenish-yellow, and the second - from salad to juicy dark green. Its pulp is juicy, in most cases red in color, the pulp happens to be pink or raspberry. Inside the product there are yellow or black seeds, they are not poisonous, but they are not eaten, as they can provoke bloating.
You rarely meet a person who does not like watermelons. They are not indifferent to him for his ability to quench their thirst well. This is timely for the scorching summer heat, when there is a great desire to eat something sweet and tasty, but not a heavy product.
The end of summer and the beginning of autumn is the time for melons and gourds. Watermelons and melons have a pleasant taste, refreshing and quenching thirst. These fruits contain many useful biologically active substances. What vitamins are found in watermelon and melon? Let's figure it out.
Watermelon
Watermelons quench thirst well and saturate the body for a long time. This is due to the high water content (about 80–90%). But there are few vitamins in watermelon. The fruit is rich in potassium, which is responsible for the balance of salts and water in the body and normalizes metabolic processes.
Watermelon is low in calories and is great for those looking to lose weight. 100 g of product contains only 25 kcal. The exact amount of vitamins and minerals in the fruit depends on where it grew, how the plant was fertilized and how the melon was looked after.
Melon
About 65% of the melon pulp is water. Unlike watermelon, melon is rich in fiber and vitamins. The low fat content allows the fruit to be included in the diet. 100 g of the product contains only 36–38 kcal. In sugary varieties, water is slightly less, but at the same time the calorie content of the culture increases.
In addition to these substances, melon is rich in silicon, cobalt and rubidium. Contains small amounts of omega-3 fatty acids. Silicon provides elasticity of blood vessels, strengthens the immune system and participates in metabolic processes. Cobalt is important for the functioning of the nervous and circulatory systems, prevents the development of osteoporosis and atherosclerosis, favorably affects the condition of the hair and the absorption of vitamins A and C. Rubidium reduces allergic reactions and maintains immunity.
Benefit
Regular consumption of melon and watermelon helps to establish the functioning of many systems and organs. Melons have a complex effect on the body. Experts note many beneficial effects from their inclusion in the diet.
- Elimination of edema.
- Improving filtration of blood plasma in the kidneys.
- Stimulation of intestinal peristalsis and enzymatic processes of the digestive system.
- Removing dangerous cholesterol from the body.
- Strengthening the activity of the immune system.
Thanks to vitamin B 2, blood circulation improves, mood and resistance to depression increase. Beta Carotene supports visual health and assists in the absorption of fats and carbohydrates. Vitamin B 5 protects cells from toxins.
Watermelon and melon have diuretic and antioxidant properties. It is especially useful for kidney, bladder and liver diseases. It is believed that melons are effective in the prevention of cancer.
Useful properties are inherent not only in the pulp of the fruit, but also in the seeds and peel. Melon seeds are used to eliminate problems with potency. To do this, they are dried, ground into powder and added to food. Watermelon seeds are rich in vitamin D and omega-3 acids. They are recommended to be taken to eliminate anxiety, with diseases of the nervous system and to strengthen the skeleton.
Watermelons and melons have antioxidant, diuretic properties, and normalize the nervous system.
The peel of a watermelon contains chlorophyll, which is involved in the processes of hematopoiesis and ensures the normal functioning of the pancreas and thyroid glands. You can get useful substances by preparing juice from an unpeeled fruit.
Harm
Very often, watermelons and melons fall into the category of prohibited foods. Especially careful should be those who suffer from diseases of the cardiovascular and urinary systems, chronic kidney disease.
It is not recommended to use melons in case of severe poisoning or diarrhea, as well as in diabetes. Watermelons should be eaten with extreme caution in the presence of stones (an abundance of liquid can provoke their movement). The fruit should not be abused by young children. Very often fruits are treated with nitrates to speed up their ripening. Once in the body, these chemicals are harmful and can cause poisoning and colic, pain in the right upper quadrant, nausea, vomiting, weakness and malaise.
To ensure that watermelons and melons are beneficial and not cause unwanted reactions, follow a few simple rules when using them.
- Do not drink melons with cold water or fermented milk products. Otherwise, digestion will be upset, diarrhea will appear.
- It is not recommended to combine fruits with alcoholic beverages.
- Eating watermelon or melon on an empty stomach can trigger stomach cramps.
- Fruit should not be combined with other foods. They are best used as a snack between meals.
Watermelons and melons contain useful vitamins, micro and macro elements. However, you should only eat high-quality fruits purchased from trusted sellers. Otherwise, the risk of poisoning and exacerbation of chronic diseases is high.
For a long time, people were interested in what vitamins in watermelon make it a valuable food product. For the first time they started talking about the watermelon in South Africa, when its so-called wild "progenitor", belonging to the melon family, was found in the tropics. The first berries were small in size, had a bitter taste and were not at all in demand among people. It was then that the Egyptians came up with a way to increase their size and also improve their taste. It happened in the two thousandth year BC.
In Russia, the first watermelons appeared in the 8th century, maybe a little later. According to historical information, they were brought from India, and sold only to noble people. And only by the seventeenth century, the berry began to be grown on the territory of Russia. Watermelon is recommended for use in certain pathologies as an adjuvant in the treatment of folk character.
Watermelon composition
It is known that watermelon is a berry that contains a huge amount of vitamins and minerals. All of them perform certain functions, due to which many processes in the human body are normalized. So, for example, it has been proven that the berry consists of 95% of water, and therefore, those who want to lose weight quickly are recommended exactly watermelon diets. Basically, 100 grams of watermelon accounts for 0.6 grams of protein, 0.1 grams of fat and 5.8 grams of carbohydrates.
In addition to essential nutrients, the product contains vitamins and minerals that make it useful. Many doubt that eating it will really benefit the body and in vain. This culture includes at least ten vitamins and twelve microelements, whose reserves must be constantly replenished for normal functioning in the body.
Vitamins contained in the berry and their main functions
It is believed that watermelon contains vitamins of the following groups:
| Vitamins per 100 grams of product | Content |
| Vitamin A | 0.017 mg |
| Vitamin B1 | 0.04 mg |
| Vitamin B2 | 0.06 mg |
| Vitamin B3 | 0.3 mg |
| Vitamin B6 | 0.09 mg |
| Vitamin B9 | 0.008 mg |
| Vitamin C | 7 mg |
| Vitamin E | 0.1 mg |
- PP - are considered the main breakers of fatty deposits. The main function is the processing of harmful "cholesterol" in the body into energy;
- beta-carotene - turns into a vitamin of group A in the human body, after which it begins to actively improve the state of its immunity;
- A (RE) - are responsible for improving the body's immune system, normalizing metabolism, and accelerating the growth of new cells;
- B1 (thiamine) - protect cells from the negative effects of toxic substances, do not accumulate in the body, and therefore require daily replenishment;
- B2 (riboflavin) - processes carbohydrates and fats in the human body into energy, and it, in turn, into muscle mass, enhance the effect of B6 vitamins;
- B6 (pyridoxine) - replenish cells in a weakened body, have a beneficial effect on mental processes and protect against increased exposure to stress and depression;
- B9 (folic acid) - necessary in a woman's body for the normal development of the fetus in early pregnancy, contribute to the proper functioning of vitamin B12, which contributes to the production of red blood cells;
- C - promote the elimination of toxic substances from the body, such as mercury, lead, copper, increase its resistance to stress;
- E (TE) - have an intensifying effect on the performance of the anticancer function in conjunction with vitamin C, do not allow the development of pathologies of a different nature;
An interesting fact is the content in watermelon of a substance called lycopene, which has a deadly effect on cancer cells. In addition, it is an excellent aid in the treatment of visual impairments.
Trace elements contained in culture, their functions
In addition to vitamins, watermelon contains a sufficient amount of minerals necessary for the organization of the normal functioning of all body systems. These include:
- calcium - has a general strengthening effect on the body, improves blood clotting function;
- phosphorus - works with calcium to promote rapid muscle building and skeletal building;
- magnesium - normalizes metabolism, improves the digestive tract;
- iron - promotes improved synthesis of cells of the body's immune system, is engaged in the neutralization of harmful substances coming from the external environment;
- potassium - normalizes the acid-base balance, the work of the cardiovascular system of the body;
- sodium - is responsible for the normal amount of sugar in blood cells and their strength.
Having learned which vitamins in watermelon make it a must-eat nutrient culture, people strive to understand how exactly its use will affect the body. In addition, everyone understands that any product should be taken in limited quantities, therefore, it is necessary to know how many grams of watermelon can be consumed per day.
Useful properties of watermelon
Considering how many vitamins and minerals watermelon contains, one should not deny its positive effect on the body as a whole. The main beneficial properties of the berry are:
- improving kidney function - given the high water content and diuretic effect that culture has, experts often recommend using them in large quantities for people suffering from urolithiasis, as well as from other chronic and inflammatory diseases associated with the genitourinary system;
- lowering blood pressure - occurs due to the presence in watermelon of a substance such as citrulline, which then becomes arginine, which normalizes the work of the cardiovascular system;
- protection from direct sunlight - possible due to the fact that the berry contains a large amount of water, which means that its use in food will prevent dehydration of the body and save in hot countries from heatstroke;
- improving the state of the body in diabetes mellitus - correct use will even reduce the glycemic index of the blood of a person suffering from high sugar levels. This is due to the content of vitamins and minerals in the berry, a large amount of water;
- normalization of the cardiovascular system - the constant use of watermelon, which contains carotenoids, potassium, lowers blood cholesterol levels, thereby preventing diseases associated with the normal functioning of the heart;
- prevention of the development of various eye diseases;
- increased male sexual activity - achieved due to the presence of arginine in it;
- improvement of the condition in various diseases of the upper respiratory tract;
- reducing the risk of developing a disease such as gout;
- reducing the possibility of developing oncological diseases - due to the presence of lycopene and carotenoids in it;
- an increase in the rate of weight loss - occurs due to the fact that the berry is slightly more than 95% water;
- reducing the risk of various diseases against the background of harmful external environmental factors.
Contraindications for eating berries
There are, however, a number of cases when the use of watermelon is contraindicated due to the substances it contains. Most often, experts warn against the use of berries in such cases as:
- decreased renal function;
- the occurrence of a violation of the outflow of urine;
- the presence of stones with a diameter of more than 4 cm - in such cases, the use of watermelon can move them from their place, which will cause severe pain;
- upset stomach in the form of diarrhea and vomiting;
- the last stages of pregnancy;
- fluid retention in the body;
- the presence of cardiovascular diseases.
It is worth remembering to choose the right berry from a seller in the market. Either it must be a proven person, or it is necessary to know certain criteria by which they are selected. It is worth considering the fact that if you use a culture with a high content of nitrates, even in a healthy person's body, malfunctions may begin.
How to choose the right watermelon?
To be sure that the purchased berry will be juicy and really useful, you should pay attention to the following points:
- crust - it should be bright, shiny, hard;
- the sound that occurs when knocking - it should be sonorous and clear, and in the berry where the peel is thicker, it will be high, otherwise it will be low;
- immersion in water - a ripe berry will definitely float up;
- tails - they should be dryish;
- the presence of a yellow spot on the side.
Why is watermelon useful?
Watermelon is a sweet and tasty fruit that contains useful vitamins and minerals that are necessary for the full functioning of the human body. Useful properties are possessed not only by the pulp of watermelon, but also by seeds with a peel. The fruit is 90% water, but this does not diminish its value. Watermelon is rich in fructose, potassium, fiber, glucose, iron, pectin, calcium and other trace minerals important for health.
Useful components
Many are interested in what vitamins are contained in watermelon, and what benefits they bring to the body. The fruit contains more than ten useful components and various trace elements. 100 g of pulp contains:
- IN 1 - 0.05 mg. Stimulates the work of the nervous and cardiovascular systems. Promotes the improvement of metabolic processes in the body and eliminates diseases of the bones and joints. Protects cell membranes from toxins.
- AT 2 - 0.07 mg. Improves liver function. Helps to process carbohydrates and fats, converting them into muscle mass. Enhances the action of other B vitamins.
- AT 6 - 0.1 mg. Helps assimilate amino acid and aids in the processing of niacin. Improves the vital functions of the body. Relieves depression, has a positive effect on the psychological state of health. Especially useful for children and nursing mothers.
- AT 9 - 0.009 mg. Regulates the functioning of the blood, is responsible for the production of blood cells. Reduces the risk of congenital diseases of the intrauterine fetus.
- Vitamin A - 0.1 mg. Improves vision, skin condition, strengthens the immune system.
- Vitamin PP - 0.2 mg. Responsible for the work of the cardiovascular system and the supply of sufficient oxygen to the body.
- Vitamin E - 0.5 mg. Strengthens the action of vitamins A and C to fight cancer cells.
Watermelon is great for people who are overweight. Due to its water structure and low calorie content (about 30 kcal per 100 g), it saturates the body and removes all excess fluid.
The sufficient content of natural minerals and vitamins in watermelon is easily absorbed by the human body. Possessing a good diuretic effect, it cleans from harmful toxins, and antioxidant properties due to active molecules, reduce the oxidation of cell membranes, and help improve digestion.
In watermelon, the main vitamin, the most indispensable from early childhood, which supports the work of almost all body functions:
- Vitamin C- 7 mg per 100 g. Responsible for the condition of internal organs, improves the condition of the skin, hair, teeth.
Useful trace elements
- kidney and urinary system diseases;
- obesity, edema;
- gout, disruption of the gallbladder;
- anemia;
- hypertension;
- bowel disease;
- infections.
The microelements included in the composition have an anti-inflammatory effect - they lower the temperature and relieve inflammation. They enhance the effect of antibiotics and reduce their harmful effects. Watermelon contains beneficial substances such as:
- Magnesium - 1.2 mg per 100 g. Helps to assimilate vitamins in the body. It controls the metabolic process and improves digestion. Essential for people with kidney and heart problems. Strengthens muscle and nervous tissue, prevents the formation of stones and debugging of salts. It helps to accumulate strength, concentrate attention, gives vigor, raises the mood.
- Calcium - 1.4 per 100 g. It helps to reduce high blood pressure and has a positive effect on the blood circulation process, improving blood clotting. Prevents kidney stones and stabilizes the nervous system.
- Iron - 0.1 mg per 100 g. Saturates cells with oxygen and increases the level of hemoglobin in the blood. Strengthens the immune system and neutralizes harmful radionuclides.
- Potassium - 11 mg per 100 g. It has a diuretic effect. Responsible for the growth of the body, the work of the acid-base balance. Helps digest carbohydrates and proteins.
- Sodium - 1.6 mg per 100 g. Improves blood vessel walls and controls blood sugar levels.
- Phosphorus - 0.7 mg per 100 g. Helps the body absorb trace elements. Promotes muscle building and strengthens bone structure.
Useful minerals
- fats - 0.5 g
- proteins - 0.6 g
- carbohydrates - 0.57 g
- dietary fiber - 0.5 g
Like all berries, watermelon contains vitamins and valuable biological components that are necessary for the human body. There are many diets and traditional medicine recipes that include the southern fruit. Watermelon quenches thirst well, saturates the body with useful elements and is a tasty, beloved delicacy.
Watermelon is a berry(and not a fruit, as many people think), which is filled with vitamins and minerals. How many calories are in a watermelon? The calorie content of watermelon is 27 calories per 100 grams.
In addition, there is so much liquid in it that it can replace several packs of juice (depending on the size). Watermelon is recommended for people with kidney and liver problems as a remedy for traditional medicine.
Composition
Are there vitamins in watermelon? Let's see. There are at least 10 different vitamins in watermelon, and half a dozen trace elements that are useful for the human body.
What vitamins are contained in watermelon and their daily function.
- (daily norm - 14-18 mg) - affects metabolic processes by regulating redox processes in the body. He is the main fat breaker... Vitamin PP is responsible for the level of "bad" cholesterol in the blood, converting it into energy.
- Beta carotene (daily norm - 5 mg) - designed to maintain the integrity of the cellular structure, neutralizing free radicals. In particular, it fights one of the most dangerous of them - atomic oxygen, which negatively affects cells and their genetic material, oxidizing fats in their composition. Beta-carotene, when it enters the human body, is able to turn into vitamin A, which increases immunity.
- Vitamin A (RE) (daily norm - 1 mg) - one of the most important vitamins for the human body, without which healthy bones, eyes and hair are impossible. It has a positive effect on the immune system and helps to normalize metabolism. The growth of new cells is also impossible without vitamin A.
- Vitamin B2 () (daily norm - 1.4 mg) - the higher the content of this element in the human body, the more temperamental and energetic the personality is. Riboflavin is essentially an internal combustion engine that helps convert fuel - carbohydrates and fats - into energy. He also helps to convert this energy into muscle mass. Enhances the effect of vitamin B6, in nature they do not exist in isolation from each other.
- Vitamin B6 (pyridoxine) (daily norm - 2-5 mg) - is necessary for the vital functions of a weakened organism. Children who are bottle-fed, pregnant women and people who have drunk several courses of antibiotics especially need it. Pyridoxine has a positive effect on people's mental health, and is able to relieve depression, which often pesters office workers.
- Vitamin B9 () (daily norm - 0.2 mg) is one of the main means of preventing the health of an unborn child. Scientists have shown that if a woman takes 0.4 mg of vitamin B9 daily before conception and during the first two weeks of pregnancy, this reduces the risk of congenital diseases by 70 percent. In addition, folic acid contributes to the proper functioning of vitamin B12, which is responsible for the production of red blood cells.
- Vitamin C (daily norm - 2-3 g) - the main stress fighter of the body. It neutralizes the effects of depression, and also increases the body's resistance to infections. If you do not get carried away with eating ascorbins, then even the most terrible allergens are not afraid of you. Vitamin C helps the body absorb iron and calcium, which are also found in watermelon. In the same time Ascorbic acid promotes the elimination of toxic mercury, lead and copper.
- Vitamin E (TE) (daily norm - 4-19 mg) is an antioxidant in its pure form. It is he who takes free radicals into circulation, preventing various pathologies from developing in the body. But alone it would be difficult for him to cope with oxidants of all stripes. It is only effective when paired with vitamin C. Its presence in watermelon seriously enhances the anti-cancer effect of vitamin E.
Grapes, a source of 7 vitamins. Which ones? read on Are the first frosts and autumn avitaminosis approaching? Learn how to protect your body
What vitamins to exclude during pregnancy, you will learn from What is watermelon useful for? 150 grams of watermelon contains the daily human need for magnesium. A useful property of watermelon is the ability to remove cholesterol, which is important for problems with the cardiovascular system.
Trace elements
- (daily intake - 500 mg) - helps the body to assimilate some vitamins qualitatively. In addition, he himself takes part in all kinds of metabolic processes, improves bowel function. Protein synthesis falls to its share.
- Phosphorus (daily norm - 1.5 g) - does not like to work alone. But, together with calcium, he takes part in the construction of the skeleton and muscle building on this basis. By the way, it is the combination of calcium and phosphorus that allows the body to efficiently assimilate these trace elements.
- (daily norm - 1.2 g) - without it, even a small wound could cause irreparable damage to the human body. Exactly calcium is responsible for blood clotting. And also - for the work of nerves, heart and blood vessels, muscle contraction, bone formation.
- Sodium (daily norm - 1 g) is also a useful element in the human body. Without it, cells would not be able to get the required amount of sugar, and blood vessels would be like a colander. Actually, even nerves without sodium would be to hell. In addition, it is thanks to sodium that a person can stay in the sun for a long time without fear of getting sunstroke.
- Potassium (daily norm - 2 g) - is responsible for the growth of the body, the accumulation of muscle mass, the work of the heart and the acid-base balance of the body. In addition, it is to the share of potassium that the assimilation of carbohydrates and the construction of proteins are allocated.
- (daily norm - 20 mg) - on its basis, a kind of knightly armor of the body is built. First, namely with the help of iron, the synthesis of cells of the immune system occurs. Secondly, iron neutralizes harmful substances that enter the body, and radionuclides, in general, do not stay here for a long time. Thirdly, it is hemoglobin, created not without the help of iron, that supplies oxygen to cells.
How to choose the right ripe watermelon by eye.
The video tells about where to buy watermelons, how to choose the right ripe watermelon by eye and which watermelon should be given to children.